公开(公告)号：EP0828264B1

公开(公告)日：2003-06-18

申请号：EP97907429.1

申请日：1997-03-21

申请人： Hitachi Medical Corporation

发明人： HONMEI, Takao, Hitachi Medical ,  TAKESHIMA, Hirotaka, Hitachi Medical ,  KAWANO, Hajime, Hitachi Medical ,  TAKUMA, Yutaka, Hitachi Medical ,  KOTABE, Munenori, Hitachi Medical ,  MAKI, Naoki ,  HARA, Nobuhiro ,  KAKUGAWA, Shigeru ,  HINO, Noriaki

IPC分类号： H01F6/00

CPC分类号： H01F6/00 ,  G01R33/3815

摘要： A small-sized highly precise superconducting magnet device such that the magnetic flux changes little with the time and quenching hardly occurs. A magnetization adjusting method for uniformly magnetizing such a magnet device is also disclosed. The superconducting magnet device has a coolant container, a permanent current retaining medium which is provided in the container and generates a magnetic flux in a uniform magnetic field region (FOV), a static magnetic field generating means composed of a plurality of cylindrical bodies made up of superconducting composite plates, a cylindrical body supporting base which supports the cylindrical bodies, and temperature adjusting elements (not shown in Fig. 67) buried in the cylindrical bodies. The static magnetic field generating means is magnetized by induction magnetization and the magnetization value is adjusted by controlling the temperatures of the cylindrical bodies by means of the temperature adjusting elements.

公开(公告)号：EP0828264A1

公开(公告)日：1998-03-11

申请号：EP97907429.1

申请日：1997-03-21

申请人： HITACHI MEDICAL CORPORATION

发明人： HONMEI, Takao, Hitachi Medical ,  TAKESHIMA, Hirotaka, Hitachi Medical ,  KAWANO, Hajime, Hitachi Medical ,  TAKUMA, Yutaka, Hitachi Medical ,  KOTABE, Munenori, Hitachi Medical ,  MAKI, Naoki ,  HARA, Nobuhiro ,  KAKUGAWA, Shigeru ,  HINO, Noriaki

IPC分类号： H01F7/22

CPC分类号： H01F6/00 ,  G01R33/3815

摘要： A small-sized highly precise superconducting magnet device such that the magnetic flux changes little with the time and quenching hardly occurs. A magnetization adjusting method for uniformly magnetizing such a magnet device is also disclosed. The superconducting magnet device has a coolant container, a permanent current retaining medium which is provided in the container and generates a magnetic flux in a uniform magnetic field region (FOV), a static magnetic field generating means composed of a plurality of cylindrical bodies made up of superconducting composite plates, a cylindrical body supporting base which supports the cylindrical bodies, and temperature adjusting elements (not shown in Fig. 67) buried in the cylindrical bodies. The static magnetic field generating means is magnetized by induction magnetization and the magnetization value is adjusted by controlling the temperatures of the cylindrical bodies by means of the temperature adjusting elements.